Illinois online forms are egregiously bad. A couple examples off the top of my head:

I was traveling through the state and got on a toll road by accident without cash to pay the tolls, the toll booth employee said I could just pay online, pointing to a sign that said "missed a toll? pay online at <url>", so we continued our trip intending to pay the tolls online. At the end of the trip, I logged on to pay our tolls--the application insisted that we enter the specific toll IDs of each toll that we missed, even though we didn't know we were supposed to be recording any toll IDs. If you didn't know the toll IDs, you could use a map application to look up the toll IDs, but the map application would crash within a second of opening it and even if you managed to get a screenshot the resolution was so low that the text was indecipherable. When I called the support number, they told me that I would be fined triple the cost of the tolls if I didn't pay within a week, but I would be able to pay without knowing the specific toll IDs that I missed. When I asked the agent to tell me what tolls I missed (clearly they knew if they were going to fine me), they told me they couldn't tell me for another week. I pointed out that this would be after the toll deadline and they relentlessly tried to avoid acknowledging that simple fact. Eventually I sent them my best guess about what I owed with a letter stating what I had attempted and that I would contact a lawyer about any fines and never heard from them again.

Some years later, after moving to Chicago, I had to file state taxes for the first time. The state issued me a driver's license with a 12 digit number, but the state tax form only allowed me to authenticate with an 8 digit Illinois driver's license number (the other acceptable forms of identification didn't apply to me for reasons I no longer remember).